Average Co-Inventor Count = 3.43
ph-index = 2
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Tomy Company, Ltd. (2 from 577 patents)
2 patents:
1. D869560 - Playing surface for spinning top toy
2. D834651 - Playing surface for a spinning top toy